very initial implementation of the extra field that holds Zip64 data.  Many question marks.  We'll likely be forced to change the way we deal with extra fields specifically for this one because of its parsing logic of optional data.  COMPRESS-36

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1149139 13f79535-47bb-0310-9956-ffa450edef68
6 files changed